20.Carefully close the display, without forcing. If it does not close easily, reinstall the top case, checking for cable routing and clearances.
21.Turn the computer over.
22.Check that the top case flex cable is still through the slot. If not, use the round shaft of a small Phillips screwdriver to carefully pull it through, as shown.
Important: If the cable does not fully reach the ZIF connector, the cable is trapped under the frame. Reinstall the top case.
28 - PowerBook G4 | Top Case |